> Capture traffic and sue the f outta everything they do that‘s not covered by a contract.

Whatever the app they would ask you to install would do probably is going to be allowed by its EULA (and I bet the EULA is also going to prohibit you from analyzing the app and whatever it does/communicates) and chances are you don't read it. And even if you do you most probably agree because you know all EULAs are brutal and there never is a button to object its specific part and continue.

What we need is legislation to recognize all the data and metadata about your PC, all its software, your home networks&devices and their usage a kind of personal data and apply the same rules GDPR applies to tracking cookies - giving you the right to continue without agreeing to be spied on.

EULA has nothing to do with this. Question is whether software installed by company you’re working for spies on you in ways you haven’t agreed to. If so, sue them, not the co that wrote the spyware.

EULAs are irrelevant if they go against the law. You don’t renounce all your rights because some law intern wrote in the EULA that you sold yourself into chattel slavery. And for those things you can give up (such as some of your data) you have to give explicit consent, clicking “I agree” under a 500 page unreadable legal document is not enough.

EULA is between the user and the vendor of the software, it isn't a agreement between the user and the users employer. Capturing traffic like that runs afoul of hacking laws.

The employer can just give you an executable and say you must install it. The executable would show you an EULA and require you to accept it.